Using Terminal schemes as it is the easiest to explain.

I win a challenge and play Terminal Schemes . Can i then play a second copy of Terminal schemes ?

Any particular reason you'd think otherwise? There's no "limit 1 per challenge" on the event.

ktom said:

Not really, been playing this way, but for some reason whilst discussing timing and other things there was a slight doubt.

thanks

The common point of "overthinking into error" on something like this would be the "one Response per trigger" rule. Someone always seems to want to say it applies to all cards with the same name. It doesn't. It only applies to each individual card/piece of cardboard.

So, trying to play 1 event card multiple times obviously won't work, but trying to play multiple event cards 1 time each does.